Spectrum costume pieces keep changing colour

[Logansan]

I've noticed that lately (not sure when it started) my characters that use some spectrum costume pieces have changed colour (blue to white, white to red etc). At least one I changed back only to have it change again the next day (although, I'm not 100% of this). It has affected a number of characters.

[Logansan]

I found another post about a similar problem and worked out that what was happening was that the secondary colour is now the one that shows when using spectrum pieces, not the primary. So I just changed both to the same colour and that seem to fixed it.